I believe if the 4th is really naruto's pops that he will surpass him. Reason's being Naruto devolped his move that was incomplete the fuuton rasenshuriken, but at the same time it's really hard to say becuase naruto have great amount of chakra even without the ninetail's influence and at the same time we never really even saw the fourth even fight, the 4th wasn't a hokage for that long and we only working with assumptions. 4th only perform 3 moves in this whole series one in Kakashi garden when he did the lighting teleport jutsu to save Rin and Kakashi, Rasengan jutsu that Naruto learned, and the forbidden jutsu that's mention to be his final last jutsu he use to seal the ninetails in Naruto.

He is only 15 16 Naruto got plenty of time to enhance his abilites. it's is really hard to pin point if Naruto will surpass the 4th reason being we never really saw the 4th fight but yet again were just going on assumption but Naruto will surpass all of them because he has heart and he had fought a lot of villains’ at a young age that will bring him with a lot of exp.

Naruto got the mass clone jutsu by the way and he could learn lots of jutsu in a short time frame rather than taking years to develop